This specific 3D model, "man ring 3D print model 12", is an asset made available by "Unknown author".
You can download this asset for free at "Unknown platform" by following the link.
The license for this digital asset is "Unknown license".
Native Formats: 3DM (Rhinoceros 3D, filesize: 18.3 MB)
Exchange Formats: OBJ (OBJ, filesize: 12.5 MB), FBX (Autodesk FBX, filesize: 9.84 MB), STL (Stereolithography, filesize: 9.71 MB)